Application of "What Is Stress

Application of "What Is Stress?
"Kevin is a very relaxed, easy- going employee. When the new technological processes were implemented last month, he was able to easily accept the changes and start working through learning the new techniques necessary to use the new processes. George, on the other hand, was concerned about the new technology long before it was ever implemented. He was afraid he would no longer be able to be the top performer in his department. He has had several problems adapting to the new situation. George works very long hours, 60- 70 hours each week.
-George spends excessive time at work because he is not sure of his job roles and responsibilities and given his personality he wants to make sure to get the job done. His supervisor has not clearly defined what his responsibilities or made clear her expectations. Based on his situation, __________ is (are) a major factor contributing to George's stress at work.

A) role demands
B) role conflicts
C) Kevin's personality
D) role ambiguity